# P Numbers vs steelyard

P Numbers and steelyard both sit at 4.8 stars, but that hides the real split: 100% of P Numbers's written reviews are positive against 56% of steelyard's. P Numbers also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 16.6). steelyard's advantage is update cadence (every 2 months vs every 39 months) and ratings volume (297 vs 5). On price, rating, ads and device support there is nothing between them.

Both are free to download. steelyard sells 1 one-off in-app purchase. P Numbers asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for P Numbers against 4.7 for steelyard. That said, the two scores are not equally well evidenced: steelyard has 297 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 100% of P Numbers's written reviews are positive against 56% of steelyard's.

P Numbers ships an update every 39 months, steelyard every 2 months. The most recent releases landed on June 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | P Numbers | steelyard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/p-numbers/id911716649/reviews)** | [4.7 (297 ratings)](https://appshunter.io/ios/app/steelyard/id1291109620/reviews) |
| Number of ratings | 5 | **297** |
| Positive reviews | **100.0% of reviews** | 55.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 7 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [Mohamed Saad](https://appshunter.io/developer/1291109619) |

## What reviewers say

### P Numbers

[App page](https://appshunter.io/ios/app/p-numbers/id911716649)

Quickly access weldability grouping numbers for welding procedures and performance qualifications. This app provides data from authoritative sources like ASME Section IX and AWS B2.1.

**Highlights:** Base metal weldability grouping lookup, Welding procedure qualification data, Performance qualification data, ASME Section IX Table QW/QB-422 data, AWS B2.1 Table C1 and C2 data, ISO/TR 20173 data

**Features:** macOS Compatibility

**In-app purchases:** none


### steelyard

[App page](https://appshunter.io/ios/app/steelyard/id1291109620)

This app quickly calculates the weight of steel sections from various international standards. It supports both metric and imperial units and offers offline functionality for convenience. Save your settings and calculations for easy access.

**Highlights:** Steel section weight calculation, Supports EU, USA, Japanese, KOREA standards, Metric and Imperial units, Offline functionality, Save calculations and settings, Advanced search system

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Blocker | $9.99 | one-time |


## Frequently asked questions

### Is P Numbers free?

P Numbers is free to download, with no in-app purchases.

### Is steelyard free?

steelyard is free to download, with in-app purchases available.

### Which has better reviews, P Numbers or steelyard?

P Numbers is rated higher. P Numbers averages 4.8 out of 5 from 5 ratings, while steelyard averages 4.7 from 297 ratings.

### Do P Numbers or steelyard have ads?

Neither P Numbers nor steelyard shows ads.

### Which is updated more often, P Numbers or steelyard?

P Numbers ships an update every 39 months, and steelyard every 2 months. Most recently, P Numbers was updated on June 11, 2026 and steelyard on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*